Awarded 1 September 2026
Unit 47 Greenfield – Low Carbon Heat Grant Works – Harley & Clarke Construction Ltd
Flintshire County Council
Building decarbonisation tenders and contracts
UK public sector, covering 600+ buyer sites
53 contracts awarded in the 24 months to 12 October 2026
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Updated 12 October 2026 · compiled by BidSkim Limited · How we count
Building decarbonisation contracts ,
53 contracts across the UK, of any size
Recently awarded
The latest building decarbonisation contracts awarded
Awarded 25 August 2026
NHDC01133773 Decarbonisation Project
North Hertfordshire District Council · East of England
Awarded 20 August 2026
CA17999 - Tender 27/2026 - PEACEPLUS PP1022 - Ballymote Centre - BCP Energy Efficiency Upgrades
Newry, Mourne and Down District Council · Northern Ireland
Awarded 1 July 2026
Tender for Various Sites - Planned Maintenance and Decarbonisation Works
Chorley Council · North West
Awarded 4 June 2026
Mary Seacole PSDS [LED & LV]
University of Salford · North West
Who wins · 24 months to October 2026
Ameresco won the most building decarbonisation contracts
THE CARBON AND ENERGY FUND LIMITED won the most by value. Each dot is one contract, coloured by who bought it.
CouncilsNHS and healthSchools and collegesOther public bodies
| Rank | Contractor | Contracts won, by buyer | Contracts | Value won | Buyers | Share |
|---|---|---|---|---|---|---|
| 1 | Ameresco | 9 | £4.6m | 2 | ||
| 2joint | Vital Energi North West · See every contract | 3 | £14.8m | 3 | ||
| 2joint | Alternative Heat Ltd. East Midlands · SME · See every contract | 3 | £13.3m | 3 | ||
| 4joint | Asset Plus Energy Performance North West · SME · See every contract | 2 | £35m | 2 | ||
| 4joint | Dalkia North West · See every contract | 2 | £4.4m | 2 | ||
| 4joint | OPTIMUS FACILITIES LTD North West · SME · See every contract | 2 | £2.4m | 1 | ||
| 7joint | THE CARBON AND ENERGY FUND LIMITED SME · See every contract | 1 | £202m | 1 | ||
| 7joint | F.P. Hurley & Sons Limited East Midlands · SME · See every contract | 1 | £22.7m | 1 | ||
| 7joint | Willmott Dixon East of England · See every contract | 1 | £15.9m | 1 | ||
| 7joint | Galliford Try South West · See every contract | 1 | £6.4m | 1 |
33 more building decarbonisation contractors ranked. See the full ranking →
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Who buys
Councils award 70% of building decarbonisation contracts
Contracts with a published value in the last 24 months, from the type of buyer to the size of the contract.
7 buyers bought building decarbonisation more than once in the last 24 months
Each dot is a buyer, by how many building decarbonisation contracts it awarded in the last 24 months.
See who they are and when they usually buy →
Few and big, or many and small
Each dot is a buyer: how many building decarbonisation contracts it awarded against what they were worth. The busiest and biggest are named.
CouncilsNHS and healthSchools and collegesOther public bodies
Top buyers by contracts awarded
| Rank | Buyer | Contracts | Value |
|---|---|---|---|
| 1 | Oxfordshire County Council | 8 | £4.6m |
| 2 | Liverpool City Region Combined Authority | 4 | £47.4m |
| 3 | North Hertfordshire District Council | 2 | £17.4m |
| 4 | Northumberland County Council | 2 | £1.4m |
| 5 | Walsall Council e-Tendering | 2 | £1.1m |
| 6 | NHS Property Services Limited | 2 | £698k |
| 7 | Westmorland and Furness Council | 2 | £629k |
| 8 | Countess of Chester Hospital NHS Foundation Trust | 1 | £202m |
| 9 | United Lincolnshire Teaching Hospitals NHS Trust | 1 | £22.7m |
| 10 | Ministry of Justice | 1 | £6.4m |
Prices
Half of building decarbonisation contracts are worth less than £1.2m
Every contract with a published value, on a log scale, coloured by who bought it.
CouncilsNHS and healthSchools and collegesOther public bodies
The 10 biggest contracts hold 87% of the money
Coloured by who bought it.
- Countess of Chester Hospital NHS Foundation TrustTHE CARBON AND ENERGY FUND LIMITED · 27 Mar 2025
- Liverpool City Region Combined AuthorityAsset Plus Energy Performance · 12 Dec 2025
- United Lincolnshire Teaching Hospitals NHS TrustF.P. Hurley & Sons Limited · 28 Nov 2025
- North Hertfordshire District CouncilWillmott Dixon · 25 Sep 2025
- Liverpool City Region Combined AuthorityVital Energi · 20 Jan 2025
- Ministry of JusticeGalliford Try · 20 Jan 2025
- Croydon Health Services NHS TrustAlternative Heat Ltd. · 15 Oct 2025
- Transport for LondonVital Energi · 13 Feb 2025
- UNIVERSITY OF CHESTERDalkia · 19 Dec 2025
- North Northamptonshire CouncilAlternative Heat Ltd. · 28 May 2025
Where and when
The North West awards the most building decarbonisation contracts. December and February are the busiest months.
Contracts by region and by month awarded. Click a region to filter the page.
FewerMore contracts
See the regions as a table
| Region | Contracts | Value |
|---|---|---|
| North West | 11 | £60.5m |
| North East | 4 | £1.7m |
| East of England | 4 | £21m |
| London | 4 | £15m |
| South East | 4 | £5.8m |
| East Midlands | 3 | £26.9m |
| Yorkshire and the Humber | 2 | £2.9m |
| West Midlands | 2 | £1.1m |
| South West | 2 | £7.1m |
| Wales | 1 | £2.5m |
| Northern Ireland | 1 | £83k |
| Scotland | 0 | Not published |
Often bought with building decarbonisation
Related services
Deadlines
Half of building decarbonisation tenders close within 29 days of being published
Each dot is a building decarbonisation tender published across the UK in the last 24 months, by how many days it was open. 57% closed within a month. Spot one a week late and 24% of the time to respond has gone.
Hear about new building decarbonisation tenders the moment they're published →
Key findings
- 29 days
is how long the typical building decarbonisation tender is open, from publication to deadline.
Median of 28 UK building decarbonisation tenders published in the last 24 months. - 1
new building decarbonisation tenders are published across the UK in a typical month.
35 in the last 24 months. - 87%
of the money is in the 10 biggest building decarbonisation contracts.
Of 50 contracts with a published value. - 55%
of building decarbonisation contracts are won by SMEs.
As recorded by the buyer, on 47 award notices. - 32%
of building decarbonisation contracts are awarded in December and February.
17 of 53 contracts.
Questions
How many building decarbonisation contracts does the UK public sector award?
53 in the 24 months to 12 October 2026, from 38 public buyers.
How long are building decarbonisation tenders open for?
The median building decarbonisation tender is open for 29 days from publication to deadline.
How much is a typical public sector building decarbonisation contract worth?
The median is £1.2m, and 12% are worth less than £250k.
Who wins the most public sector building decarbonisation contracts?
Ameresco won the most (9). THE CARBON AND ENERGY FUND LIMITED won the most by value (£202m).
Which buyers award the most building decarbonisation contracts?
Councils award 70% of them.
What is included
Multi-measure decarbonisation of public and commercial buildings, combining low-carbon heating, fabric, lighting and renewable measures, often grant-funded such as under the Public Sector Decarbonisation Scheme.
- Decarbonisation works programmes across corporate and civic buildings
What is not included
- Single-technology projects (the matching con.energy service, for example con.energy.solar-pv-and-battery-storage or con.energy.heat-pumps)
- Homes and residential blocks (con.energy.domestic-whole-house-retrofit)
- Heat decarbonisation plans, audits and feasibility studies (another industry: consulting-accountancy)